Unit lock



H. G. volGHT 2,412,789

Dec. 17, 1946.

UNIT LOCK Filed oct. 4, 1945 '2 sheets-sheet 1 -ferent types of locks.

Patented Dec. 17, 1946 afname UNIT Loox Henry G. Voight, Hamden, Colm., assigner to Sargent & Eompany, New Haven, Conn., a corporation or @ennecticut application october 4, 1943, serial No. 504,813

2 Claims. (Cl. 292-359) i Unit locks of this character .usually employ a 1 mounting plate or supporting plate constituting a part of the case, and a face plate forming the front of the lock case through which the bolt projects, which face plate is formed integrally with the supporting plate carrying the mechanism. rihis supporting plate forms onel wall of the lock case, and a cover plate is secured thereto in spaced relation to form the opposite wall, which walls, with the face plate, form the case. In my patent, above referred to; it was necessary when different types of locks were to be made to form the proper openings in the face plate of the lock for the bolts or other projecting parts depending upon the type of lock which was to be made. This, of course, required some work to be done upon the case after its original manufacture, so that the case as originally made was not complete. In the present instance the lock case as originally made is equipped with all of the openings which may be required for the various bolts. In other words, there will be formed in the face plate an opening for latch bolt, and upper and lower openings for dead bolts or stop bolts or dogactuating members, or other elements which may be employed and which project through the face of the lock. As not al1 of these elements are used in every lock, and as it would be unsightly to have openings in the face plate of the lock which are not employed, I secure a mask or scalp plate over thei'ace plate of the lock, this mask or scalp plate containing the openings which are necessary for the particular type of lock which is to be manufactured. In this manner the case of the lock is exactly the same for any one of a number of dif- The mask or scalp plate, however, will be individual to the particular lock,

' and While it will contain openings which will reg- .isterv with those which are desired to be used, it

will conceal those openings which are not to bey used.

Also I have provided a lock of this type with a knob-dogging mechanism mounted upon one of the side walls of the lock case instead of being 2 mounted in the face plate of the lock, as is usually the case with unit-type locks.V

One object of the invention is to provide a lock v case which may be employed with any one of ay number of different locks.

A further object of the invention is to provide a lock case which is universal in character in that it may be employed with a number of locks of diierent types, such case being provided with a mask or scalp plate of substantially the same size and shape as the faceplate of the lock, which scalp plate will contain only the face openings necessary for the particular lock which is to be made, and which will conceal the remaining openings in the face plate of the case itself.

A still further object of the invention is the simplification and the cheapening of 'the manufacture of locks by` providing a univers-ally usable lock case which may be kept in stock in quantity and used in the manufacture of a number of dif- I Vierent locks.

To these and other ends the invention consists in the novel featuresand combinations of parts to be hereinafter described and claimed.

In the accompanying drawings:

Fig. 1 is al vertical sectional view of a lock embodying my improvements;

Fig. 2 is a sectional view on line 2-2 of Fig. l; Fig. 3 is a sectional view on line 33 of Fig. l; Fig. 4 is an elevational view of the stop or 1 dogging mechanism mounted on a wall of the case;

Fig. 5 is a view partly in section on line 5--5 of Fig. 4;

Fig. 6 is a front or edge view or thevlock case shown in Fig. 1;

Fig. 'I is a sectional view on line 1--1 of Fig. 2. showing the face plate of the lock case;

Figs. 8, 9, 10 and 11 are front elevational views of masks or scalp plates of various types; and

' Fig. 12`is a top plan view of the scalp plate' forms one side wall of the case, the opposite wall being formed by the plate I3 which is secured by screws or the like to posts 'I3l formed upon the plate II. As is usual in locks of this type, the front plate projectsl beyond the cover plate I3 (Fig. 2), so that its inner edge is substantially flush with the face of an escutcheon plate I4, which escutcheon plate is secured by screws I5 to the outer escutcheon plate I6, the latter being in turn secured to the supporting plate II by screws I1 passing through the latter plate and entering posts I8 formed on the escutcheon plate I6. The escutcheon plates may also be secured to the door after the lock has' been set into place by screws I9.

The lock mechanism is mounted between the plates or front and rear walls II and I3, and the mechanism employed will, 'of course, vary depending upon the type of lock which is to be made. As shown for purposes of illustration, the lock mechanism consists of a latch bolt 20 to which is connected a retracting yoke 2l having laterally turned ends 22 designed to be engaged by the rollbacks 23, 24 and 25. As shown in Fig.` 3, the rollback 2.4 is formed integrally with a. central hub 26, while the rollbacks 23 and 25 are rotatably mounted Yon reduced end portions of this hub.

Knob sleeves 28 and 29 are secured to the case, and the shank 36 of the inside knob is rotatably mounted in the sleeve 29. Secured to the knob is a stern 3I of non-circular cross section, which stem enters a non-circular opening in a hub 32,

in Figs. 2 and 12, is provided with a laterally extending end flange 41 designed to lie against the mounting plate vor wall I I and to extend snugly into a space between this plate and the escutcheon I6 at the outside of the door. The plate 45 may be secured to the plate I2 in'any suitable manner vthe plate 45. This plate contains the opening 46 for the latchbolt and an additional opening 49 through which a dead bolt may' project, and it will, of course, be understood that in this event a dead bolt would be included in the lock case in addiy tion to the Alatch bolt.

In Fig. 9 of the drawings there is illustrated a further type of mask or scalp plate 45b to be used j with a lock for a communicating door, which plate also rotatably mounted in the sleeve 29, which hub engages the rollback 25 to actuate the latter, as shown in Fig. 2, and as is well understood in the art.

The outside knob is shown at 33 and is provided with a shank 34 rotatably mounted in the sleeve 28, the inner end of which shank engages the rollback 23 so that this rollback is actuated by the outside knob, it being understood that each of the rollbacks may be actuated independently of the others, as the rollbacks 23 and 25 are rotatably mounted on the hub 26.

Mounted in the outside knob is a cylinder lock 35 to the key barrel of which is secured a stem 36 of non-circular cross section, which stem is received in a similarly shaped opening in the hub 26, so that this hub and rollback 24 thereon areactuated by the lock at the outside of the door.

The latch bolt 26 is provided with a head 48 projecting through an opening 4I in the face A plate I2. It will be seen by reference to Fig. 7 that this face plate is not only provided with the opening 4I for the latch bolt, but is provided with an additional opening 42 of rectangular shape,

and also an opening 43 which is generally of rectangular shape but which may be enlarged adjacent its ends, -as shown at 44, so that the lock case consisting generally of the members II, I2

conceals the openings 42 and 43.- The face plate is substantially of the same length and widthl as the front plate I2 of the lock case, and as shown will be provided with the opening 46 for the latch bolt and upper and lower openings 49 and 49e for a pair of dead bolts, as is usual in locks for communicating doors. are adapted to register with the openings 42 and 43 in the plate I2, respectively.

In Fig. `10 of the drawings I have shown a scalp plate 45 adapted for use with a. front door lock.

, This plate is provided with the openings 46 and 49- `front plate I2.

In Fig. 11 I have shown a scalp plate'45d for use with a vestibule door lock, which plate will be provided with openings 46, 50 and 5I.

I have also provided a dogging-mechanism for the latch bolt which may be mounted upon one of the walls of the lock case, and may be employed in place of the dogging-mechanism operated by the push buttons adapted to extend'through the openings 56 and 5I in the plates 45c and 45d. If this novel dogng mechanism is employed, the openings 50 and 5I may be omitted.' As shown more particularly in Figs. 2, 4 and 5, this dogglng mechanism is mounted upon the plate I3 forming the inner wall of the lock, and is housed between this plate and the escutcheon I4. A plate is secured to the plate I3 and disposed in spaced relation thereto, the plate 55 lying between the plate I3 and the escutcheon I4. Between the plates -I3 and 55 is pivotally mounted a walking beam 56, this member being provided with an opening 56al receiving the knob shank and with a pair of circular bearing members 51 rockably mounted in openings 58 and 59 in the plates I3 and 55, respectively. `Mounted upon the. ends of the walking beam are push buttons 60 and 6I which extend through the escutcheon I4 at the inner face of the door for manual operation.

To the inner end of the push button 6I is secured a slide 62 which carries a doggingmember' 63 adapted when projected outwardly or toward the outer knob to project into a recess 64 in the shank 34 of the outside knob to dog the knob against movement. The portion of the slide 62 adjacent the push -button 6I is provided with recesses 65 adapted to. be engaged by a springpressed ball detent 66 mounted on the plate I3 to releasably hold the dogging mechanism in4 either inoperative or operative -position vagainst' accidentaldisplacement. A body portion 61 of the slide 62 extends throughan openinginthe The openings 49 and 49 wall I I of the lock case so as to be guided thereby in its sliding movements.

It will be understood that the push buttons 60 and 6I extendthrough the escutcheon plate Il at the inside of the door adjacent the inner knob j (not shown), where they may be readily accessible for manual operation. It is believed that the operation of the lock will be readily understood from the foregoing description. With the push buttons 60 and 6I in the-position shown in Fig'. 2, the latch bolt is free to be retracted by either the inner or outer knobs, and the dogging mechanism is held against accidental displacement from this position by the engagement of the detent 66 in one of the recesses 65. Ii', however, the push button 6I is pushed inwardly, the slide I62 will be moved toward the outer knob, and the clogging element 63 will enter the recess 64 in the knob shank and dog the outer knob against rotation. In this position oi. the parts the latch bolt may not be retracted by the outer knob, but may be retracted by the inner knob,'or by means of the keyoperated lock 35 at the outside o! the door, which rotates the stem 36 and therefore the hub 26 carrying the rollback 24.

While I have shown and described some preferred embodiments of my invention, it will be understoodthat itis not to be limited to all of the details shown, but is capable of modication andvariation within the spirit of the invention and within the scope of the claims.

What is claimed is:

1. A door lock comprising a case adapted to be secured to a door and having opposed inner and outer side walls, a bolt reciprocably mounted in the case, inner and outer knobs for retracting said bolt, inner and outer knob sleeves secured to said inner and outer side walls respectively within which said knobs are rotatably mounted, a doggng member movably mounted in the case forI dogging said outer knob, a walking beam pivotally carried by. said inner wall and connected to said dogging member, actuating means for said walking beam accessible for operation at the inside of the door, and said walking beam comprising a plate-like member having an opening receiving said knob sleeve and being pivoted on an axis intersecting the axis of said sleeve.

2. A door lock comprising a case adapted to be secured to a door and having opposed inner and outer side walls, a, bolt reciprocably mounted in the case, inner and outer knobs for retracting said bolt, inner and outer knob sleeves secured to said inner and outer side walls respectively within which said knobs are rotatably mounte'd,'a dogging member movably mounted in the case for .dogging said outer knob, a walking beam pivotally ing beam accessible for operation at the inside of HENRY c. voIGHr. 

